PHYSICAL AND CHEMICAL PROPERTIES

2190 TEP is a hydrotreated heavy paraffinic distillate that may have been further refined by severe solvent extraction, severe hydrocracking, or severe hydrotreating (Chevron 2001). It is described as a clear colorless to pale yellow liquid. Few physical and chemical property data are available; however, Table 8-1 provides information from material-safety data sheets provided by Navy suppliers.

OCCURRENCE AND USE

Mineral oil of inhalable particle size is called oil mist. The size of the particles depends on the process by which they are generated. Oil mists can potentially be generated in a variety of applications, which include metalworking, textile machinery, mist lubrication, and machining processes (ACGIH 2003; CONCAWE 1986). In submarines, generation of oil mist occurs primarily in the engine room. Inhalation and dermal contact are two possible exposure routes. The focus of this review is inhalation because adverse health effects resulting from dermal exposure are considered minimal provided that adequate personal-hygiene measures, such as wearing protective clothing and washing hands, are followed. Dermal toxicity of highly refined oils in humans is briefly summarized in CONCAWE (1986) and consists primarily of dermatitis and acne induced by oil.

TABLE 8-1 Physical and Chemical Data on Turbine Oil (Symbol 2190 TEP)

Synonyms and trade names

Lubricating oila

CAS registry number

64742-54-7

Molecular formula

Molecular weight

Boiling point

<315°C

Melting point

NA

Flash point

NA

Explosive limits

NA

Specific gravity

0.86-0.87 at 15.6°C

Vapor pressure

<0.01 mm Hg at 38°C

Solubility

Soluble in hydrocarbons; insoluble in water

Conversion factors

Note: The Navy provided material-safety data sheets from two other suppliers (Equilon and Imperial). The little information on chemical and physical properties from those other sources was consistent with the data provided by Chevron (2001).

aThe Petroleum HPV Testing Group (2003).

Abbreviations: NA, not applicable or not available.

Source: Data from Chevron 2001.



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